"""Geocoding proxy endpoints — keeps AMAP_KEY server-side."""

from fastapi import APIRouter, Query
import httpx

from app.config import settings
from app.geocoding import reverse_geocode, _amap_sign, AMAP_KEY

router = APIRouter(prefix="/api/geocode", tags=["geocoding"])


@router.get("/search")
async def search_location(
    keyword: str = Query(..., min_length=1, max_length=100),
    city: str = Query(default="", max_length=50),
):
    """Proxy for Amap POI text search. Returns GCJ-02 coordinates."""
    if not AMAP_KEY:
        return {"results": []}
    params = {
        "key": AMAP_KEY,
        "keywords": keyword,
        "output": "json",
        "offset": "10",
        "page": "1",
    }
    if city:
        params["city"] = city
    sig = _amap_sign(params)
    if sig:
        params["sig"] = sig
    async with httpx.AsyncClient(timeout=5.0) as client:
        resp = await client.get("https://restapi.amap.com/v3/place/text", params=params)
        data = resp.json()
    if data.get("status") != "1":
        return {"results": []}
    results = []
    for poi in data.get("pois", [])[:10]:
        if poi.get("location"):
            results.append({
                "name": poi.get("name", ""),
                "address": poi.get("address", ""),
                "location": poi["location"],  # "lng,lat" in GCJ-02
            })
    return {"results": results}


@router.get("/reverse")
async def reverse_geocode_endpoint(
    lat: float = Query(..., ge=-90, le=90),
    lon: float = Query(..., ge=-180, le=180),
):
    """Reverse geocode WGS-84 coords to address via Amap."""
    address = await reverse_geocode(lat, lon)
    return {"address": address or ""}